Lasko 3135 30" Oscillating Industrial Fan, quot, Black Industrial-grade pedestal fan for large-scale air circulation 30-inch metal fan blades; 3 powerhouse speeds with pull-cord controls Adjustable height from 64 to 92 inches Tilt-back head; steel-body construction; sturdy, round base; 10-foot cord 3 prong gounded plug, UL listed.